Grok 4.7 vs GPT-5.6 Luna: Release Comparison
Comparison of the Grok 4.7 and GPT-5.6 Luna releases: 2 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.
- For intelligence, Grok 4.7 scores highest: Grok 4.7 (xhigh) at 46, against GPT-5.6 Luna (max) at 37 for GPT-5.6 Luna.
Releases compared
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost per Task (USD, Log Scale)
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indexes
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grok 4.7 (xhigh) |  SpaceXAI | 46 | 52 | 54 | 54 | - | 47 | 56 | - | - | - | - | - | - | 81k | 59k | 240M | - | - | - | - | - | - | 500k | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | - | |
| Grok 4.7 (high) | SpaceXAI | 46 | 52 | 54 | 54 | - | 47 | 55 | - | - | - | - | - | - | 66k | 47k | 198M | - | - | - | - | - | - | 500k | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | - | |
| GPT-5.6 Luna (max) |  OpenAI | 37 | 40 | 44 | 37 | 36 | 36 | 43 | $0.18 | $0.2 | $0.20 | $1.20 | $0.02 | $320 | 41k | 28k | 154M | 165 | 126.10s | 126.10s | 129.14s | 251.21s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| GPT-5.6 Luna (xhigh) | OpenAI | 35 | 37 | 41 | 35 | 33 | 34 | 41 | $0.09 | $0.2 | $0.20 | $1.20 | $0.02 | $179 | 24k | 15k | 85M | 165 | 32.29s | 32.29s | 35.32s | 140.48s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| GPT-5.6 Luna (high) | OpenAI | 32 | 34 | 37 | 33 | 30 | 32 | 38 | $0.04 | $0.2 | $0.20 | $1.20 | $0.02 | $108 | 14k | 7k | 50M | 153 | 9.76s | 9.76s | 13.04s | 92.55s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Luna (medium) | OpenAI | 25 | 27 | 28 | 28 | 24 | 26 | 32 | $0.02 | $0.2 | $0.20 | $1.20 | $0.02 | $44 | 4k | 2k | 18M | 154 | 2.63s | 2.63s | 5.88s | 30.03s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Luna (low) | OpenAI | 21 | 23 | 22 | 24 | 20 | 23 | 28 | $0.01 | $0.2 | $0.20 | $1.20 | $0.02 | $27 | 3k | 559 | 10M | 152 | 1.77s | 1.77s | 5.07s | 16.30s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Luna (Non-reasoning) | OpenAI | 16 | 16 | 15 | 17 | - | 18 | 22 | $0.01 | $0.2 | $0.20 | $1.20 | $0.02 | $23 | 2k | 0 | 5M | 153 | 0.83s | 0.83s | 4.10s | 13.22s | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |